62 lines
1.6 KiB
Text
62 lines
1.6 KiB
Text
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#!/usr/bin/perl
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#
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# Written to clean out extraneous subscriptions after user migrations.
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# Should be safe to run, but we shouldn't need to again. Committed for
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# posterity.
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#
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use v5.10;
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use strict;
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BEGIN {
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require "$ENV{LJHOME}/cgi-bin/ljlib.pl";
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}
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use Data::Dumper qw/ Dumper /;
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my $dbr = LJ::get_db_reader();
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my $sth = $dbr->prepare( 'SELECT userid, clusterid FROM user ORDER BY userid');
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$sth->execute or die;
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my %users;
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my $ct = 0;
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my $process = sub {
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# For each cluster, get the list of people who are NOT on it
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foreach my $target_cid ( @LJ::CLUSTERS ) {
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my @userids;
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foreach my $test_cid ( @LJ::CLUSTERS ) {
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next if $test_cid == $target_cid;
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push @userids, @{$users{$test_cid} || []};
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}
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next unless @userids;
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my $userid_str = join ',', @userids;
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my $dbcm = LJ::get_cluster_master( $target_cid ) or die;
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my $subs = $dbcm->selectall_arrayref(
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qq{SELECT userid, subid, is_dirty, journalid, etypeid, arg1, arg2,
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ntypeid, createtime, expiretime, flags
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FROM subs WHERE userid IN ($userid_str)} );
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if ( $subs && @$subs ) {
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foreach my $sub ( @$subs ) {
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print "/* $target_cid */ " . join(',', @$sub) . "\n";
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}
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print "/* Deleting... */\n";
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$dbcm->do( qq{/* [$target_cid] */ DELETE FROM subs WHERE userid IN ($userid_str)} )
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or die;
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}
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}
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$ct = 0;
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%users = ();
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};
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while ( my ( $uid, $cid ) = $sth->fetchrow_array ) {
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push @{$users{$cid} ||= []}, $uid;
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next unless ++$ct == 100;
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$process->();
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}
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$process->();
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